Chapter 4 Troubleshooting - Rigol DS1302CA User Manual

Chapter 4 Troubleshooting

1. After the oscilloscopes is powered on, the screen remains dark (no
display), please inspect the instrument following these steps:
(1) Check the power cable connection.
(2) Check if the power switch is turned on.
(3) After the above inspection, restart the oscilloscope.
(4) If the problem still remains, please contact RIGOL for help.
2. After the signal acquisition the waveform does not appear, please
check according to the following steps:
(1) Check if the probes are correctly connected with the signals.
(2) Check if the probes are firmly connected to the channels.
(3) Check if the probes are correctly connected with the object being tested.
(4) Check if the circuit can generate signal at the test point (Connect the probe
compensator output to an input channel to confirm whether the testing point
has no signal or the input channel is in some troubles).
(5) Repeat the acquisition.
3. The measurement result is 10 times higher or lower than the value
expected.
Check if the probe attenuation is the same as the channel attenuation.
4. If the oscilloscope does not get a stable waveform display, please
check according to the following steps:
(1) Check the Trigger Source and notice if it is set to the channel in use.
(2) Check the Trigger Type. Use "Edge" for normal signals, and use "Video" for
VIDEO signals.
(3) Switch the Coupling into HF Rejection or LF Rejection in order to filter the noise
which disturbs trigger.
5. After pressing the RUN/STOP button, the oscilloscope does not display
any waveform on screen.
User‟s Guide for DS1000CA Series
RIGOL
4-1